<template>
	<view class="detail">
		<view class="fixbg" :style="{ 'background-image' : 'url('+ songDetail.al.picUrl +')' }"></view>
		<musichead :title="songDetail.name" :icon="true" color="white"></musichead>
		<view class="container" v-show="!isLoading">
			<scroll-view scroll-y="true">
				<view class="detail-play" @tap="handleToPlay">
					<image :src="songDetail.al.picUrl" :class="{ 'detail-play-run' : isPlayRotate }" mode=""></image>
					<text class="iconfont" :class="iconPlay"></text>
					<view></view>
				</view>
				<view class="detail-lyric">
					<view class="detail-lyric-wrap" :style="{ transform : 'translateY('+ - (lyricIndex -1) * 82 +'rpx)' }">
						<!-- <view class="detail-lyric-item">测试文字测试文字</view> -->
						<view class="detail-lyric-item" :class="{ active : lyricIndex == index }" v-for="(item,index) in songLyric" :key="index">{{ item.lyric }}</view>
					</view>
				</view>
				<view class="detail-like">
					<view class="detail-like-head">喜欢这首歌的人也听</view>
					<!-- <view class="detail-like-item">
						<view class="detail-like-img">
							<image src="../../static/logo.png" mode=""></image>
						</view>
						<view class="detail-like-song">
							<view>蓝</view>
							<view>
								<image src="../../static/dujia.png" mode=""></image>
								<image src="../../static/sq.png" mode=""></image>
								石白其 - 蓝
							</view>
						</view>
						<text class="iconfont iconbofang"></text>
					</view> -->
					<view class="detail-like-item" v-for="(item,index) in songSimi" :key="index" @tap="handleToSimi(item.id)">
						<view class="detail-like-img">
							<image :src="item.album.picUrl" mode=""></image>
						</view>
						<view class="detail-like-song">
							<view>{{ item.name }}</view>
							<view>
								<image v-if="item.privilege.flag > 60 && item.privilege.flag < 70" src="../../static/dujia.png" mode=""></image>
								<image v-if="item.privilege.maxbr == 999000" src="../../static/sq.png" mode=""></image>
								{{ item.album.artists[0].name }} - {{ item.name }}
							</view>
						</view>
						<text class="iconfont iconbofang"></text>
					</view>
					
				</view>
				<view class="detail-comment">
					<view class="detail-comment-head">精彩评论</view>
					<!-- <view class="detail-comment-item">
						<view class="detail-comment-img">
							<image src="../../static/logo.png" mode=""></image>
						</view>
						<view class="detail-comment-content">
							<view class="detail-comment-title">
								<view class="detail-comment-name">
									<view>是阿冗的冗</view>
									<view>2020年1月2日</view>
								</view>
								<view class="detail-comment-like">56027 <text class="iconfont iconlike"></text></view>
							</view>
							<view class="detail-comment-text">测试文字测试文字测试文字测试文字测试文字测试文字测试文字</view>
						</view>
					</view> -->
					<view class="detail-comment-item" v-for="(item,index) in songComment" :key="index">
						<view class="detail-comment-img">
							<image :src="item.user.avatarUrl" mode=""></image>
						</view>
						<view class="detail-comment-content">
							<view class="detail-comment-title">
								<view class="detail-comment-name">
									<view>{{ item.user.nickname }}</view>
									<view>{{ item.time | formatTime }}</view>
								</view>
								<view class="detail-comment-like">{{ item.likedCount | formatCount }} <text class="iconfont iconlike"></text></view>
							</view>
							<view class="detail-comment-text">{{ item.content }}</view>
						</view>
					</view>
					
				</view>
			</scroll-view>
		</view>
	</view>
</template>

<script>
	import musichead from '../../components/musichead/musichead.vue'
	import '@/common/iconfont.css'
	import { songDetail , songSimi , songComment , songLyric , songUrl } from '../../common/api.js'
	export default {
		data() {
			return {
				songDetail : {
					al : {
						picUrl : ''
					}
				},
				songSimi : [],
				songComment : [],
				songLyric : [],
				lyricIndex : 0,
				iconPlay : 'iconpause',
				isPlayRotate : true,
				isLoading : true
			}
		},
		components : {
			musichead
		},
		onLoad(options){
			//console.log( options.songId );
			this.getMusic(options.songId);
		},
		onUnload(){
			this.cancelLyricIndex();
			// #ifdef H5
			this.bgAudioMannager.destroy();
			// #endif
		},
		onHide(){
			this.cancelLyricIndex();
			// #ifdef H5
			this.bgAudioMannager.destroy();
			// #endif
		},
		methods: {
			getMusic(songId){
				
				this.$store.commit('NEXT_ID',songId);
				
				uni.showLoading({
				    title: '加载中...'
				});
				this.isLoading = true;
				
				Promise.all([ songDetail(songId) , songSimi(songId) , songComment(songId) , songLyric(songId) , songUrl(songId) ]).then((res)=>{
					if( res[0][1].data.code == '200' ){
						this.songDetail = res[0][1].data.songs[0];
					}
					if( res[1][1].data.code == '200'){
						this.songSimi = res[1][1].data.songs;
					}
					if( res[2][1].data.code == '200' ){
						this.songComment = res[2][1].data.hotComments;
					}
					if( res[3][1].data.code == '200' ){
						let lyric = res[3][1].data.lrc.lyric;
						//console.log( lyric );
						let re = /\[([^\]]+)\]([^\[]+)/g;
						var result = [];
						lyric.replace(re, ($0,$1,$2)=>{
							result.push({ "time" : this.formatTimeToSec($1) , "lyric" : $2 });
						});
						this.songLyric = result;
					}
					if( res[4][1].data.code == '200' ){
						
						// #ifdef MP-WEIXIN
						this.bgAudioMannager = uni.getBackgroundAudioManager();
						this.bgAudioMannager.title = this.songDetail.name;
						// #endif
						
						// #ifdef H5
						if(!this.bgAudioMannager){
							this.bgAudioMannager = uni.createInnerAudioContext();
						}
						this.iconPlay = 'iconbofang1';
						this.isPlayRotate = false;
						// #endif
						
						this.bgAudioMannager.src = res[4][1].data.data[0].url || '';
						this.listenLyricIndex();
						this.bgAudioMannager.onPlay(()=>{
							this.iconPlay = 'iconpause';
							this.isPlayRotate = true;
							this.listenLyricIndex();
						});
						this.bgAudioMannager.onPause(()=>{
							this.iconPlay = 'iconbofang1';
							this.isPlayRotate = false;
							this.cancelLyricIndex();
						});
						this.bgAudioMannager.onEnded(()=>{
							this.getMusic( this.$store.state.nextId );
						});
						
					}
					
					this.isLoading = false;
					uni.hideLoading();
				});
			},
			formatTimeToSec(value){
				let arr = value.split(':');
				return (Number(arr[0]*60) +  Number(arr[1])).toFixed(1);
			},
			handleToPlay(){
				
				if( this.bgAudioMannager.paused ){
					this.bgAudioMannager.play();
				}
				else{
					this.bgAudioMannager.pause();
				}
			},
			listenLyricIndex(){
				clearInterval(this.timer);
				this.timer = setInterval(()=>{
					for(var i=0;i<this.songLyric.length;i++){
						if( this.bgAudioMannager.currentTime > this.songLyric[this.songLyric.length-1].time ){
							this.lyricIndex = this.songLyric.length-1;
							break;
						}
						if( this.bgAudioMannager.currentTime > this.songLyric[i].time && this.bgAudioMannager.currentTime < this.songLyric[i+1].time ){
							this.lyricIndex = i;
						}
					}
				},500);
			},
			cancelLyricIndex(){
				clearInterval(this.timer);
			},
			handleToSimi(songId){
				this.getMusic(songId);
			}
		}
	}
</script>

<style scoped>
	.detail-play{ width:580rpx; height:580rpx; background:url(~@/static/disc.png); background-size: cover; margin:214rpx auto 0 auto; position: relative;}
	.detail-play image{ width:370rpx; height:370rpx; border-radius: 50%; position: absolute; left:0; top:0; right:0; bottom: 0; margin:auto; animation: 10s linear move infinite; animation-play-state: paused;}
	.detail-play .detail-play-run{ animation-play-state: running;}
	@keyframes move{
		from{ transform: rotate(0deg);}
		to{ transform : rotate(360deg);}
	}
	
	.detail-play text{ width:100rpx; height:100rpx; font-size:100rpx; color:white; position: absolute; left:0; top:0; right:0; bottom: 0; margin:auto;}
	.detail-play view{ width:230rpx; height:360rpx; background:url(~@/static/needle.png); position: absolute; left:100rpx; right:0; top:-200rpx; margin:auto; background-size:cover;}
	
	.detail-lyric{ font-size:32rpx; line-height: 82rpx; height:246rpx; text-align: center; overflow: hidden; color:#6f6e73;}
	.detail-lyric-wrap{ transition: .5s;}
	.detail-lyric-item{ height:82rpx;}
	.detail-lyric-item.active{ color:white;}
	
	.detail-like{ margin:0 30rpx;}
	.detail-like-head{ font-size:36rpx; color:white; margin:50rpx 0;}
	.detail-like-item{ display: flex; align-items: center; margin-bottom: 28rpx;}
	.detail-like-img{ width:82rpx; height:82rpx; border-radius: 20rpx; overflow: hidden; margin-right:20rpx;}
	.detail-like-img image{ width:100%; height:100%;}
	.detail-like-song{ flex:1; color:#c6c2bf;}
	.detail-like-song view:nth-child(1){ font-size:28rpx; color:white; margin-bottom: 12rpx;}
	.detail-like-song view:nth-child(2){ font-size:22rpx;}
	.detail-like-song image{ width:26rpx; height:20rpx; margin-right:10rpx;}
	.detail-like-item text{ font-size:50rpx; color:#c6c2bf;}
	
	.detail-comment{ margin:0 30rpx;}
	.detail-comment-head{ font-size:36rpx; color:white; margin:50rpx 0;}
	.detail-comment-item{ margin-bottom:28rpx; display: flex;}
	.detail-comment-img{ width:64rpx; height: 64rpx; border-radius: 50%; overflow: hidden; margin-right: 18rpx;}
	.detail-comment-img image{ width:100%; height:100%;}
	.detail-comment-content{ flex:1; color:#cbcacf;}
	.detail-comment-title{ display: flex; justify-content: space-between;}
	.detail-comment-name{}
	.detail-comment-name view:nth-child(1){ font-size:26rpx;}
	.detail-comment-name view:nth-child(2){ font-size:20rpx;}
	.detail-comment-like{ font-size:28rpx;}
	.detail-comment-text{ font-size:28rpx; line-height: 40rpx; color:white; margin-top:20rpx; border-bottom: 1px #e0e0e0 solid; padding-bottom: 40rpx;}
</style>
